Pointer to "value struct x"

How do I dynamically allocate a value struct and get a pointer to it?

If I have:

value struct x
{
    String ^myString;
};

I can do this:

x vsInstance;开发者_C百科
x *pvs = &vsInstance; // "Unmanaged pointer" to managed object

And I can do this:

x ^vsInstance = gcnew x;

But I can't do this:

x *pvs = new vsInstance

I need a * pointer rather than a ^ because I am trying to hold this value struct inside an unmanaged class, and I need to dynamically allocate this object every time a class is created.

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I found that what I was trying to do was unnecessary, I used gcroot which solved my design problem. However, I found that I can get a native pointer from pin_ptr but that it would not work in this circumstance